%0 Journal Article
%T The Best Available Technology of Water/Wastewater Treatment and Seawater Desalination: Simulation of the Open Sky Seawater Distillation
%A Djamel Ghernaout
%J Green and Sustainable Chemistry
%P 68-88
%@ 2160-696X
%D 2013
%I Scientific Research Publishing
%R 10.4236/gsc.2013.32012
%X <span>This review suggests the concept of the best available technology of water/wastewater treatment and seawater desalination which is in fact a simulation of the seawater distillation at the open sky: coagulation in salty water aerated basin/</span><span> </span><span>coagulation using seawater as coagulant solution with distillation using stored solar energy followed by waterfall on a natural mountain. This natural, green, and technico-economical technology is composed of three steps: the first one is coagulation which may be achieved</span><span>:</span><span> 1) in salty water aerated basin (air stripping, AS; dissolved air flotation, DAF) where the raw water is </span><span>¡°</span><span>diluted</span><span>¡±</span><span> in seawater</span><span>;</span><span> or 2) in </span><span>¡°</span><span>conventional</span><span>¡±</span><span> coagulation using seawater as coagulant solution instead of alum/ferric salts. The first option seems to be more natural as it simulates river water dilution in seawater and the second one is more practical for </span><span>¡°</span><span>rapid</span><span>¡±</span><span> water consummation. For colloids and microorganisms¡¯ removal, double-</span><span>layer compression and charge neutralisation, as main coagulation and disinfection mechanisms, would be involved in the first and second options, respectively. Aerated basin (AS/DAF) reproduces the natural aeration to simulate healthy natural water basin. Using stored solar energy, distillation as the best liquid-solid/liquid-liquid separation process provides the removal of dissolved pollutants. For well balanced calco-carbonic equilibrium, the last step of this green treatment is the waterfall on a natural mountain providing useful gases, dissolved oxygen and carbon dioxide, and mineral salts to the water.</span><span></span>
%K Air Stripping (AS)
%K Seawater
%K Water Treatment
%K Coagulation
%K Dissolved Air Flotation (DAF)
%K Distillation
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=31981